Emerson Fisher 4320 Manual de Instruções descarregar pdf (Página 5)

Instruction Manual

D103621X012

4320 Position Monitor

April 2014

Table 1. Specifications

Available Mountings

J Quarter‐turn rotary‐shaft

J sliding‐stem or

J linear applications

Can also be mounted on other actuators that comply

with IEC 60534‐6‐1, IEC 60534‐6‐2, VDI/VDE 3845

and NAMUR mounting standards

Input Measurement

Stem Travel (linear movement)

Minimum: 2.5 mm (0.10 inch)

Maximum: 210 mm (8.25 inches)

Shaft Rotation (rotary movement)

Minimum: 45_

Maximum: 90_

Shaft Rotation (rotary movement, arced array)

Minimum: 13_

Maximum: 30_

Measurement Output

Analog: 0-100%

Discrete: on/off switches (2)

Reference Accuracy

1% of span

On/Off Control

Output Signal

Pneumatic signal as required by the actuator, up to

95% of supply pressure

Minimum Span: 3.1 bar (45 psig)

Maximum Span: 7 bar (101 psig)

Action: Single or Double Acting

Supply Pressure

Minimum: 3.1 bar (45 psig)

Maximum: 7 bar (101 psig)

Supply Medium

Air or Natural Gas

Air: Supply pressure must be clean, dry air that

meets the requirements of ISA Standard 7.0.01. The

supply air at the device should have a dew point less

than -20_C (-4_F).

Natural Gas: Natural gas must be clean, dry, oil-free

and noncorrosive. H

S content should not exceed

20 ppm. Refer to ATEX and IECEx Special Conditions

of Safe Use on page 16 for additional information on

use of natural gas as supply medium.

A maximum 40 micrometer particle size in the air

system is acceptable. Further filtration down to 5

micrometer particle size is recommended. Lubricant

content is not to exceed 1 ppm weight (w/w) or

volume (v/v) basis. Condensation in the air supply

should be minimized.

Air Consumption

(1)

4320

At 5.5 bar (80 psig) supply pressure:

0.036 m

/hr (1.27 scfh)

Pilot Valve Leakage

Maximum at 20_C: 8 ml/min (0.0003 scfm/min)

Maximum at -20_C: 800 ml/min (0.028 scfm/min)

Air Capacity / Flow Rate

Supply Pressure: 1.2 Cv

Connections (Optional)

Supply, Output Pressure, and Vent: 1/4 NPT

Wireless Set Point Command

IEC 62591 (WirelessHART) 2.4 GHz DSSS

Local User Interface

Liquid Crystal Display (LCD)

Two pushbuttons for navigation, setup, and

calibration

Communication Protocol

HART 7

Maintenance Port Communication Signal

Bell 202 Voltage Signaling: 1200 bps binary

phase-continuous Frequency-Shift-Keying (1220 Hz

mark, 2400 Hz space) superimposed on voltage level

Initial Dynamic Variable Assignments (Default)

Dynamic

Variable

Assignment

DEVICE STRUCTURE

Control Snap Control Monitor

Primary (PV) Position Position Position

Secondary (SV) Set Point Set Point Switch States

Tertiary (TV) Switch States Switch States Cycle Counter

Quaternary (QV) Supply Voltage Supply Voltage Supply Voltage

Refer to table 4 for a complete list of Device Variables

Wireless Communication Signal

2.4 GHz, DSSS, WirelessHART

Maximum 10 dBm (10 mW) EIRP at 2.46 GHz

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